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Endogenous Private Information Structures

Author

Listed:
  • Sjaak Hurkens

    (Universitat Pompeu Fabra)

  • Nir Vulkan

    (Universitat Pompeu Fabra)

Abstract
Many models in the economics literature deal with strategic situations with privately informed agents. In those models the information structure is assumed to be exogenous and common knowledge. In many applications information gathering is one of the strategic options available to agents. We formally incorporate this option into the game and the information structure will arise endogenously. We ask whether models with exogenous information structures, and the results they provide, are robust with respect to this endogenization. We show that any Nash equilibrium of the game with information acquisition induces a Nash equilibrium in the corresponding game with an exogenous structure. The same is not always true when `Nash equilibrium' is replaced by `sequential equilibrium' but we provide sufficient conditions on the structure of the game for which this is true. Moreover, we characterize the (sequential) Nash equilibria of games with an exogenous information structure that can arise as a (sequential) Nash equilibrium of a game with endogenous information acquisition,

Suggested Citation

  • Sjaak Hurkens & Nir Vulkan, 2000. "Endogenous Private Information Structures," Econometric Society World Congress 2000 Contributed Papers 0613, Econometric Society.
    • Handle: RePEc:ecm:wc2000:0613
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    References listed on IDEAS

    as
    1. Esther Hauk & Sjaak Hurkens, 2001. "Secret information acquisition in Cournot markets," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 18(3), pages 661-681.
    2. Tom K. Lee, 1982. "Resource Information Policy and Federal Resource Leasing," Bell Journal of Economics, The RAND Corporation, vol. 13(2), pages 561-568, Autumn.
    3. Jean-Pierre Ponssard, 1979. "Uncertainty in the demand function, Oligopolistic markets and the strategic role of information," Post-Print hal-00364248, HAL.
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    5. Cremer, Jacques & Khalil, Fahad & Rochet, Jean-Charles, 1998. "Strategic Information Gathering before a Contract Is Offered," Journal of Economic Theory, Elsevier, vol. 81(1), pages 163-200, July.
    6. Cremer, Jacques & Khalil, Fahad, 1992. "Gathering Information before Signing a Contract," American Economic Review, American Economic Association, vol. 82(3), pages 566-578, June.
    7. Hurkens, Sjaak & Vulkan, Nir, 2001. "Information acquisition and entry," Journal of Economic Behavior & Organization, Elsevier, vol. 44(4), pages 467-479, April.
    8. Nicola Persico, 2000. "Information Acquisition in Auctions," Econometrica, Econometric Society, vol. 68(1), pages 135-148, January.
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    15. Hwang, Hae-shin, 1995. "Information Acquisition and Relative Efficiency of Competitive, Oligopoly and Monopoly Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 36(2), pages 325-340, May.
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    18. Hurkens, Sjaak & Vulkan, Nir, 2003. "Free entry does not imply zero profits," Economics Letters, Elsevier, vol. 81(3), pages 285-290, December.
    19. Anke Kessler, 1998. "The Value of Ignorance," RAND Journal of Economics, The RAND Corporation, vol. 29(2), pages 339-354, Summer.
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    Cited by:

    1. Philipp C. Wichardt & Pavlo R. Blavatskyy, "undated". "Base-Rate Neglect and Imperfect Information Acquisition," IEW - Working Papers 233, Institute for Empirical Research in Economics - University of Zurich.
    2. Anders Poulsen & Michael Roos, 2010. "Do people make strategic commitments? Experimental evidence on strategic information avoidance," Experimental Economics, Springer;Economic Science Association, vol. 13(2), pages 206-225, June.
    3. Anders U. Poulsen & Michael V. M. Roos, 2009. "Do People Make Strategic Moves? Experimental Evidence on Strategic Information Avoidance," Discussion Papers 09-06, University of Copenhagen. Department of Economics.
    4. Poulsen, Anders, 2007. "Learning to Make Strategic Moves: Experimental Evidence," MPRA Paper 10927, University Library of Munich, Germany.

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    More about this item

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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